National Museum of Nuclear Science & History
Helen Warren worked for the Edenfield Electric Company.
Gebhart worked in the 200 East Area at Hanford during the Manhattan Project.
John “Jack” Carleton Healey, a colonel in the U.S. Air Force, participated in the Manhattan Project as part of General Groves’ staff in Washington, DC.
A. P. Nowlin worked for the Tennessee Eastman Corporation at the Y-12 Plant.
